The publisher for an availability replica event (such as a state change or configuration change) is waiting for exclusive read/write access to the list of event subscribers. Internal use only. Information from Microsoft®
Waitopedia is a comprehensive resource of information about SQL Server waits.
The description shown below is the top answer as voted by the Spotlight community.
The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.
HADR_ARCONTROLLER_NOTIFICATIONS_SUBSCRIBER_LIST
Category: Idle
SQL Server versions: 2012, 2014, 2016, 2017
This is an idle wait and so it can be safely ignored.
What is HADR_ARCONTROLLER_NOTIFICATIONS_SUBSCRIBER_LIST?
1 Answer
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answered 3105 days ago
Spotlight Essentials
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This wait never occurs for most instances
For each of 4207 instances, we ranked HADR_ARCONTROLLER_NOTIFICATIONS_SUBSCRIBER_LIST on how frequent it is compared to all other recent waits. The chart shows the total of all rankings.
Prevalence of HADR_ARCONTROLLER_NOTIFICATIONS_SUBSCRIBER_LIST across the Spotlight Population
For 44 % of hours with this wait, average wait time is less than 0.053 ms
For each instance, we found all the recent hours when it had a HADR_ARCONTROLLER_NOTIFICATIONS_SUBSCRIBER_LIST wait. We found the average latency for each of those hours.
79 instances contributed data to this chart